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import os.path
import bb
class UnpackError(Exception):
def __init__(self, filename, destdir, command, output):
self.filename = filename
self.destdir = destdir
self.command = command
self.output = output
def __str__(self):
return "Unable to unpack '%s' to '%s' (cmd: %s): %s" % \
(self.filename, self.destdir, self.command, self.output)
def to_boolean(string, default=None):
if not string:
return default
normalized = string.lower()
if normalized in ("y", "yes", "1", "true"):
return True
elif normalized in ("n", "no", "0", "false"):
return False
else:
raise ValueError("Invalid value for to_boolean: %s" % string)
def is_patch(filename, parameters):
try:
apply = to_boolean(parameters.get("apply"))
except ValueError, exc:
bb.fatal("Invalid value for 'apply' parameter for %s: %s" %
(filename, parameters.get("apply")))
if apply is not None:
return apply
if parameters.get("patch"):
bb.msg.warn(None, "Deprecated usage of 'patch' url param for '%s', please use 'apply={yes,no}'" % filename)
return True
base, ext = os.path.splitext(filename)
return ext in (".diff", ".patch")
def subprocess_setup():
import signal
# Python installs a SIGPIPE handler by default. This is usually not what
# non-Python subprocesses expect.
signal.signal(signal.SIGPIPE, signal.SIG_DFL)
def unpack_file(file, destdir, dos=False, env=None):
import subprocess, shutil
dest = os.path.join(destdir, os.path.basename(file))
if os.path.exists(dest):
if os.path.samefile(file, dest):
return True
cmd = None
if file.endswith('.tar'):
cmd = 'tar x --no-same-owner -f %s' % file
elif file.endswith('.tgz') or file.endswith('.tar.gz') or file.endswith('.tar.Z'):
cmd = 'tar xz --no-same-owner -f %s' % file
elif file.endswith('.tbz') or file.endswith('.tbz2') or file.endswith('.tar.bz2'):
cmd = 'bzip2 -dc %s | tar x --no-same-owner -f -' % file
elif file.endswith('.gz') or file.endswith('.Z') or file.endswith('.z'):
base, ext = os.path.splitext(file)
cmd = 'gzip -dc %s > %s' % (file, base)
elif file.endswith('.bz2'):
base, ext = os.path.splitext(file)
cmd = 'bzip2 -dc %s > %s' % (file, base)
elif file.endswith('.tar.xz'):
cmd = 'xz -dc %s | tar x --no-same-owner -f -' % file
elif file.endswith('.xz'):
base, ext = os.path.splitext(file)
cmd = 'xz -dc %s > %s' % (file, base)
elif file.endswith('.zip') or file.endswith('.jar'):
cmd = 'unzip -q -o'
if dos:
cmd = '%s -a' % cmd
cmd = "%s '%s'" % (cmd, file)
elif os.path.isdir(file):
shutil.rmtree(dest, True)
shutil.copytree(file, dest, True)
else:
shutil.copy2(file, dest)
if not cmd:
return
pipe = subprocess.Popen(cmd, preexec_fn=subprocess_setup, shell=True,
cwd=destdir, env=env, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
stdout = pipe.communicate()[0]
if pipe.returncode != 0:
raise UnpackError(file, destdir, cmd, stdout)
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